From Slate:
The incredibly popular, highly contentious Wikipedia pages for penis and vagina. Plus: Meet a guy who uploaded one of the penis photos. By Ben Blatt
Wikipedia co-founder Jimmy Wales has described his vision for the free encyclopedia as "the sum of all human knowledge." It's a noble goal, but it turns out that many Wikipedia users—readers and editors alike—are less interested in the sum than the parts. Two parts, in particular: the human penis and vagina.
Wikipedia keeps detailed records of page views and edit history so it’s easy to measure how often readers visit each article and how much work editors have put into each page. You might guess the entries for brain and human brain would be the most popular anatomy pages, given the brain’s importance and complexity. But together they average a total of only 215,000 views a month—considerably less than one-half the monthly page views either the penis or vagina page receive. The penis page is so popular it receives four times as many views as head, shoulders, knees, and toes—combined.
Here’s a graphic that shows the popularity of different anatomy related pages on Wikipedia
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